Tack fastened stud for snap fasteners



Oct. 6, 1931.

F. E. WARNER TA CK FASTENED STUD FOR SNAP FASTENERS II/Ill Patented Oct. '6, 1931 T r Eric-a FRANK E. wARNERfior vvA'rnRn'UnY, oonnncrrcur; Assrcnoa 'ro' soov'xnx. time FACTURING COMPANY, OF W T BBURY, "conn'ncricur, e. conronn'rron or icon- Application filed May 29,

This invention is in the nature of an inrprovement upon thegdevice ofthe'Patent No. 1,690,082, granted October 30,1928 to Scovill Manufacturing Company, as assignee of the undersigned;Frank;E;' ,wam asfsr tack-fastened stud tor-snap" fasteners'.

The obyect ofth s inventlon is to provide a snap-fastener member, such as a stud or head, with means by which the member may like parts are similarly designated, Figure 1f is a vertical section of the shell of a non-re,- silient stud or head memberof-asnap fastener, and Fig. 2 is a bottom plan view there of. Fig. 3 isa bottom plan view of the tackengaging element; Fig. 4 is a top plan view thereof, and Fig. 5 is a vertical sectionthereof. Fig. 6 is across section of the centrally depressed back of the stud or l1ead,and F ig.

7 is a'bottom plan View thereof. Fig. 8is an elevation of the tack. Fig. 9 is a vertical section of the assembled stud, and-Fig. 10 is a similar view of the stud set upon a piece of fabric. Illustrating one embodiment of the invention, the shell is composed of a non-resilient knob-like portion 1, adapted to engage the snap fastener. This shell has the knurled neck 2 by whichengagement of the stud or "head and the complemental socket member .is effected. This shell has the laterally .eX- tended base portion-3 and'the downturned peripheral rim flange 41.

gaging element 5, composed of a single piece of steel or other metal, bent to formv a base 6, which base is provided with a central hole 7 complement-al resilient socket member. of a ta lsivAr FASTENERS 1929. serial no. 36 6,884

of-the shank ofthe tack'to be eniployedas the fastening element. From this hole e2:- tend radial. slits 8 whereby'the base is rendered resilient in its action with relation to' the engagement of the shank otthe fastenmg tack. Extending from the base are oppositely arranged ends 91 and 10 which are of slightly lessdiameter-than the. diameter I curved longitudinally and'transversely and bent upwardly and converged to form an upstanding element in line with the hole 7 andadapted to engage the shank of the tack substantially throughout the extent ofthe projection between the parts 9 and 10., I p

- This ta'ck-ei'igaging element is placed within the shellyas indicated in'Figs. 9'and 10, andthen a centrally depressed back 11'.

isJplaCed within the flanged and the'fiange closed down over its rim, as indicated in Figs. 9 and '10,-whereby the tack-engaging element issecurely clampedbetween the shell and the back,and'the baclr of the shell closed. The hole 12 in the back llis enough larger in diameter than the diameter of-the shank of the tackto permit the shank of the tack to start entering thesprin'g member without binding on thefback.

The tack is shown in Fig.8, and comprises the head portion 13 and-the pointed shank 14c,

and these twoparts may be made in any'usual or; approved way and of any usual or 'approved form appropriate for use in connec tion with the fasteningof the stud orhead member'of this invention to'an article, which isindicated' at 15, Fig. 10. i

It will be noted from Figs. 9 and' 1 (),"pa"r ticularly, that theparts of the shell between the knurled-portion 2 and the lower adj acent parts of'the' laterally extended base portion 3 come into close contact with the: portions 9 and 10 of the tack-engaging element and that theconvergence ofthe'parts 9 and lO' function together with the interveningedges'of' .the b'ase 6 to form, projections that fllllliil-i mately engaged between vthe'sh'ell'and its .7 'ba kll.

Within thisshellis placed the tack-en- As shown in'Figs. 3, 4, 5 and 9,the,base 6 Fig. 10,-t he-' tack is inserted'andthe" device therein for the passage of the tack has a jagged edge wnereby the shank of the tack is engaged frictionally. The hole in the back in the patent also is surrounded by a jagged edge. In the patent the tack-engaging element was of rigid material and purposely non-resilient.

In the present invention the tack-engaging element is of lighter stock than the stock used in the formation of the tack-engaging element of the patent the hole in the base of the element is purposely made slightly smal er than the shank of the tack and the base of the element 5 containing the hole 7 is slitted so as to become resilient and thereby reacting on the shank of the tack after it has passed through the hole, to prevent the withdrawal of the tack and to ensure a reliable and permanent engagement of the tack and stud or head.

lVith the tac z-engaging element made resilient in relation to the tack, the holes in the base of the tack-engaging element and in the back of the stud need not be angular, as in the patent referred to, but may be and preferably are circular.

I am aware that if it is not broadly new to make a stud with an internal member having a hole slitted radially to provide a resilient engagement with the shank of a'tack, and to secure such member within the stud by various means, but I believe that I am the first to make a resilient tack-engaging memher having the characteristics herein clescribed and claimed.

Variations in the details of construction are permissible within the principle of the invention and the scope of the claims following.

W hat ll claim is 1. A snap-fastenermember, having a shell, and a one-piece tack-engaging member arranged within said shell and comprising a normally flat b se having a hole of less diameter than the diameter of the shank of the tack and through which the shank passes, said base being slitted radially from the hole, whereby the shank of the tack when forced through the hole in the flat base raises the adjacent slitted parts of the base and is resil iently engaged thereby, and upstanding oppositely arranged parts rising from said base and curved longitudinally and transversely and converging above said hole to engage the shank of the tack throughout substantially the extent of its projection between said upstanding parts to prevent tippin 2. A snap-fastener member, having a shell, and a tack-engaging member arranged within said shell and comprising in one unitary piece a base having a hole of less diameter than the diameter of the shank of the tack and through which the shank passes, said base being slitted radially from the hole whereby the shank of the tack is resiliently engaged, said base having a pair of upstanding parts curved longitudinally and transversely and converging over the hole in said base to engage the shank of the tack throughout substantially the extent of its projection between said upstandin g parts to prevent tipping, and a back closed in upon the shell and having ahole of slightly larger diameter than the diameter of the shank of the tack, through which said shank passes freely.

I In testimonywhereof I have hereunto set my hand this 28 day of May A. D. 1929.

FRANK E. l/VARNER. 

